Question

 Find the missing letters in the below series:
….. , SIY, OEU, KAQ, GWM, CSI
A. VMC
B. WMC
C. VNC
D, WNC

Answer 1

Hint: Above series is a 3 letter word series. There is a pattern in this series that the first letter of any word is in difference of 3 consecutive letters with the preceding or succeeding word. This kind of pattern is observed in all the 3 letters.

Complete step by step answer:
The series given above is a 3 letter word series.
….. , SIY, OEU, KAQ, GWM, CSI
If you look carefully then you will find that the first letter of any word is in difference of 3 consecutive letters with the preceding or succeeding word.
SIY and OEU
The first letter of SIY is S and the first letter of OEU is O. Now, in the alphabetic series O, P, Q, R, S so you can see that difference between O and S is 3 consecutive letters (P, Q, R). Here, we are going from O to S not S to O.
The second letter of SIY is I and OEU is E. In the alphabetic series E, F, G, H, I, so again you can see that the difference between E and I is 3 consecutive letters (F, G, H).
Similarly for the third letter of SIY and OEU the difference between Y and U is of 3 consecutive letters V, W, X.
And the pattern is going in the reverse order of alphabet series. Like in SIY and OEU, the letters between S and O are R, Q, P.
Then according to the pattern the missing word is:
First letter of the word is W which we have got from S, T, U, V, W.
Second letter of the word is M which we have got from I, J, K, L, M.
Third letter of the word is C which we have got from Y, Z, A, B, C.
Hence, the missing word is WMC.
Hence, the correct option is (b).

Note: For your satisfaction, you can check this pattern with other words of the series too.
For KAQ and GWM,
The number of alphabets between K and G taken from G to K is H, I, J.
The number of alphabets between A and W taken from W to A is X, Y, Z.
The number of alphabets between Q and M taken from M to Q is N, O, P.